Home / 1,242,002.70-1,863,004.05-864,089.10

Finding the Fourth Proportional to 1,242,002.70, 1,863,004.05 and 864,089.10

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Solution

The fourth proportional to 1,242,002.70, 1,863,004.05 and 864,089.10 is: 1,296,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,002.70 : 1,863,004.05 = 864,089.10 : x
  2. Step 2: Convert to fraction form
    1,242,002.70/1,863,004.05 = 864,089.10/x
  3. Step 3: Cross multiply
    1,242,002.70x = 1,863,004.05 × 864,089.10
  4. Step 4: Simplify right side
    1,242,002.70x = 1,609,801,492,860.86
  5. Step 5: Solve for x
    x = 1,609,801,492,860.86/1,242,002.70
  6. Step 6: Final answer
    x = 1,296,133.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.